export default (): string => {
  return `<?xml version="1.0" encoding="UTF-8"?>
<cmmn:definitions xmlns:dc="http://www.omg.org/spec/CMMN/20151109/DC" 
                 xmlns:di="http://www.omg.org/spec/CMMN/20151109/DI" 
                 xmlns:cmmndi="http://www.omg.org/spec/CMMN/20151109/CMMNDI" 
                 xmlns:cmmn="http://www.omg.org/spec/CMMN/20151109/MODEL" 
                 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
                 id="Definitions_1" 
                 targetNamespace="http://bpmn.io/schema/cmmn">
  <cmmn:case id="Case_1">
    <cmmn:casePlanModel id="CasePlanModel_1" name="A CasePlanModel">
      <cmmn:planItem id="PlanItem_1" definitionRef="Task_1" />
      <cmmn:task id="Task_1" name="Task" />
    </cmmn:casePlanModel>
  </cmmn:case>
  <cmmndi:CMMNDI>
    <cmmndi:CMMNDiagram id="CMMNDiagram_1">
      <cmmndi:Size width="500" height="500" />
      <cmmndi:CMMNShape id="DI_CasePlanModel_1" cmmnElementRef="CasePlanModel_1">
        <dc:Bounds x="156" y="99" width="800" height="500" />
        <cmmndi:CMMNLabel />
      </cmmndi:CMMNShape>
      <cmmndi:CMMNShape id="PlanItem_1_di" cmmnElementRef="PlanItem_1">
        <dc:Bounds x="192" y="132" width="100" height="80" />
        <cmmndi:CMMNLabel />
      </cmmndi:CMMNShape>
    </cmmndi:CMMNDiagram>
  </cmmndi:CMMNDI>
</cmmn:definitions>`;
};